tailieunhanh - Steam gasification of bagasse: Effect of heating rate

Bagasse residue is a potential feedstock for steam gasification, but knowledge of this technology is still small and fragmented. Heating rate is of the most important factors influencing the gasification process. | TNU Journal of Science and Technology 203 10 23 - 29 ISSN 1859-2171 e-ISSN 2615-9562 STEAM GASIFICATION OF BAGASSE EFFECT OF HEATING RATE Hong Nam Nguyen1 Laurent Van De Steene2 University of Science and Technology of Hanoi Vietnam Academy of Science and Technology Hanoi Vietnam 2BioWooEB CIRAD Montpellier France ABSTRACT Bagasse residue is a potential feedstock for steam gasification but knowledge of this technology is still small and fragmented. Heating rate is of the most important factors influencing the gasification process. However this parameter has not yet been fully investigated. In this study the characteristics of bagasse and its chars were identified and the effect of heating rate on steam gasification kinetics was studied. Bagasse contained little ash content comparable to woody biomass which is beneficial for gasification processes. The bagasse char had a high heating value comparable to coal. Effect of a small change in heating rate from 5 to 15 Cmin-1 was not observed while a significant increase from 15 to 1800 Cmin-1 had a considerable effect on steam gasification kinetics. A char produced at a high heating rate increased gasification kinetics by times compared to a char produced at a low heating rate. Results and data produced could be useful for the conception of new gasifiers using bagasse such as staged-gasifiers in which the char production zone is separated from the gasification zone. Keywords Bagasse biomass steam gasification kinetics Macro-thermogravimetric analysis Received 29 7 2019 Revised 15 8 2019 Published 16 8 2019 KHÍHÓA BÃ MÍA VỚI TÁC NHÂN HƠI NƯỚC ẢNH HƯỞNG CỦA TỐC ĐỘ GIA NHIỆT Nguyễn Hồng Nam1 Laurent Van De Steene2 ITrường Đại học Khoa học và Công nghệ Hà Nội Viện Hàn Lâm Khoa học và Công nghệ Việt Nam Hà Nội Việt Nam 2BioWoodEB CIRAD Montpellier Pháp TÓM TẮT Bã mía là nguồn nguyên liệu tiềm năng cho khí hóa với tác nhân hơi nước nhưng kiến thức về công nghệ này vẫn còn hạn chế và phân mảnh. Tốc độ gia nhiệt là một trong

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